Draft Cooler Planning for Boulder Breweries and Taprooms
In a brewery taproom, the walk-in cooler is part of the bar. Every pour starts in the cold room, travels through the draft lines and ends up in a customer's glass. When the keg cooler is too small, too warm near the door or too far from the taps, the result is foamy pours, wasted beer and staff fighting the layout every shift. For Boulder breweries, taprooms and brewpubs planning a new space or an expansion, the draft cooler deserves the same planning attention as the brewhouse.
This guide covers how to plan a new walk-in draft cooler in Boulder and nearby communities like Louisville, Lafayette, Superior and Longmont, from sizing and keg layout to refrigeration choices and coordination with your draft system installer.
Start with how you pour, not just how many kegs you hold
Keg count matters, but a good draft cooler is designed around the way the taproom actually operates. Before anyone picks a box size, it helps to answer a few questions:
- How many taps are on the wall today, and how many might you add in the next few years?
- How many kegs are on line at once, and how many full kegs do you hold in reserve behind them?
- Do you need space for cans, bottles, crowlers or packaged inventory for to-go sales?
- Will the cooler also hold kitchen product for a brewpub, or is it dedicated to beer?
- How do kegs arrive and leave, by hand truck from the brewhouse, by forklift or from an outside delivery door?
Those answers shape the floor plan. A taproom with a rotating lineup and many small-batch releases may need more reserve space than one with a few flagship beers. Because BBCOND builds with Crown Tonka modular insulated panels, the box can be sized in custom dimensions to fit the actual room instead of forcing the bar layout around a standard footprint.
Placing the cooler close to the taps
The best draft systems keep the run from keg to faucet as short and direct as the building allows. Many Boulder taprooms put the walk-in directly behind the bar wall, with shanks running through the cooler wall to a tap tower or a wall-mounted faucet panel. When the cooler has to sit farther away, the draft system installer will typically plan a glycol-chilled trunk line to keep beer cold on the way to the bar.
For the walk-in itself, that means planning a few details early:
- Penetrations. Where beer lines, gas lines and any glycol lines pass through the panels, so they can be sealed properly and do not interrupt the insulation more than necessary.
- Keg racking. Shelving or racks that keep on-line kegs organized and reachable, with room to swap kegs without moving everything else.
- Gas and regulator space. A spot for CO2 or blended gas cylinders and regulators, whether inside or outside the box, based on your draft installer's design and local requirements.
- Door location. A door placed for keg traffic, ideally not right where cold air spills into the warmest part of the bar.
We coordinate the box design with your draft system provider so panels, penetrations and racking all line up before installation day.
Remote or self-contained refrigeration for a taproom
Heatcraft offers both remote refrigeration systems and self-contained or top-mount units. For draft coolers, the choice often comes down to heat, noise and space:
- Remote systems put the condensing unit outdoors or on the roof, with the evaporator inside the box. That keeps compressor heat and noise out of the taproom, which matters in a space where people want to sit and talk.
- Self-contained or top-mount units can make sense for smaller coolers where running refrigeration piping outside is difficult, though they reject heat into the surrounding room and add some noise.
Evaporator placement also matters. Air should move evenly across the kegs without blasting straight down onto the beer lines or the door. Equipment is selected for the box size, door openings and Boulder's elevation, since altitude affects how outdoor condensing units perform.
Consistent temperature and efficient operation
Draft beer is sensitive to temperature swings, and a busy Friday night with the door opening every few minutes is the real test of a keg cooler. Features that help hold steady temperatures and keep operating costs reasonable include:
- Strip curtains and self-closing doors with quality gaskets
- LED lighting inside the box, which adds less heat than older fixtures
- EC evaporator fan motors
- Modern controls with temperature monitoring and alerts to a manager's phone
- Refrigeration equipment selected with current refrigerant rules in mind, which you should confirm for your jurisdiction and application
Some Colorado utilities offer programs for efficient commercial refrigeration, so check with your utility before equipment is finalized. Building, health and liquor licensing requirements can also affect your layout, so confirm current requirements with the City of Boulder or your local jurisdiction early in the design process.
Why BBCOND focuses on new builds
Many refrigeration companies in Colorado focus mainly on repair calls. BBCOND is different. Since 2015 we have worked as a commercial HVAC and refrigeration installation contractor, and our refrigeration work is centered on designing, supplying and installing new equipment: custom walk-in coolers and freezers, outdoor permanent walk-ins and large refrigeration infrastructure replacements. We do not offer repair, emergency service or maintenance contracts.
For a brewery, that means the cold room is treated as a planned part of the build, sized for your tap list and growth, coordinated with your draft installer and general contractor, and started up and checked before the first keg goes in. If your existing keg cooler is undersized or worn out, our answer is a new, properly designed box. Learn more about our commercial refrigeration services in Colorado, including new-build walk-in coolers for breweries and taprooms.
Frequently asked questions
Can a new draft cooler be built inside an existing Boulder taproom?
Often, yes. Modular panels can be brought in through standard doors and assembled on site. A site survey checks ceiling height, floor condition, electrical service and where refrigeration equipment can go before a layout is finalized.
Should the keg cooler and packaged product share one box?
It can work well if the box is sized for both and the layout keeps keg traffic separate from packaged inventory. Some breweries prefer a combination unit with separate rooms so each can be organized and accessed independently.
Can a draft cooler be located outdoors?
Yes. Crown Tonka offers walk-ins designed for outdoor use. An outdoor box needs a proper pad, a roof built for Colorado snow loads and attention to hail and sun. The draft installer will then plan how lines reach the bar.
How early should we start planning?
As early as possible, ideally during design and before the bar wall is framed. Panels and refrigeration equipment have lead times, and penetrations for beer lines are much easier to plan than to add later.
Plan your Boulder brewery cooler with BBCOND
Whether you are opening a new taproom, expanding a brewpub or replacing a keg cooler that no longer keeps up, BBCOND can help you design cold storage that supports great pours from day one. We work in Boulder and throughout the Denver metro and Front Range. Call 303-219-1000, email sales@bbcond.com, or contact us to schedule a free on-site consultation and estimate.